ELS R1
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Find the pair's shape as for F2L, then count the misoriented last-layer edges (a top edge whose top facet does not show the top colour).
Your status
Algorithms (9)
R2 B2 L' B' L B' R2
My choice
7 HTM · 7 STM · 10 QTM
3-gen
rotationless
<R,L,B>
Cubemuch
x' R2 U2 L' U' L U' R2 x
7 HTM · 7 STM · 10 QTM
3-gen
rotation
<U,R,L>
Cubemuch
(U2) first, then:
R U R' U' F R' F' R2 U R'
10 HTM · 10 STM · 11 QTM
3-gen
rotationless
<U,R,F>
Do U2 first (AUF) on the case as drawn. · Cubemuch
x R2 B R2 U R U2 B U R'
9 HTM · 9 STM · 12 QTM
3-gen
rotation
<U,R,B>
Cubemuch
z' U2 Lw U2 B' U' B U' Lw' U2
9 HTM · 9 STM · 12 QTM
3-gen
rotation
<U,L,B>
Cubemuch
(U) first, then:
x U B y' U2 B' U' B y U2 B' U'
9 HTM · 9 STM · 11 QTM
2-gen
rotation
<U,B>
Do U first (AUF) on the case as drawn. · Cubemuch
B y B2 L B' L' B L' y' L2 B'
9 HTM · 9 STM · 11 QTM
2-gen
rotation
<L,B>
Cubemuch
R2 y R2 B' R' B y' B' R2
7 HTM · 7 STM · 10 QTM
2-gen
rotation
<R,B>
Cubemuch
x2 Lw2 U Lw U' x2 Lw' y' Lw2 U' Lw' U2
9 HTM · 9 STM · 12 QTM
2-gen
rotation
<U,L>
Cubemuch
How this case is verified
The case is the source's setup (or, where it has none, another source algorithm reversed). Setup: x' R2 U L' U L U2 R2 x. Every algorithm above was run by our logic engine from that state and reaches "f2l-eo".